Home / 282,147.41-423,219.65-99,913.40

Finding the Fourth Proportional to 282,147.41, 423,219.65 and 99,913.40

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Solution

The fourth proportional to 282,147.41, 423,219.65 and 99,913.40 is: 149,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,147.41 : 423,219.65 = 99,913.40 : x
  2. Step 2: Convert to fraction form
    282,147.41/423,219.65 = 99,913.40/x
  3. Step 3: Cross multiply
    282,147.41x = 423,219.65 × 99,913.40
  4. Step 4: Simplify right side
    282,147.41x = 42,285,311,562.64
  5. Step 5: Solve for x
    x = 42,285,311,562.64/282,147.41
  6. Step 6: Final answer
    x = 149,869.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.